Sep 25, 2012 9:00pm PDT
recent middle east attack on the u.s. >> the attack on the civilian in benghazi were attacks on america. there should be no doubt that we will be relen relentless in tracking down the killers and bringing them to justice. >>reporter: this week mitt romney hammered the president over what he characterizesed as the president's response to the benghazi attack. he said the development in the middle east are bumps in the road. that was my reaction. bumps in the road. we had an ambassador assassinated. >>reporter: today as if in reresponsible the president invoke the memory of ambassador stevens. >> we must reaffirm our future will be determined by people lick chris stevens and not by his killers. >>reporter: mr. obama called the video that sparked the protest crude and disgusting. then added this lesson in tolerance. >> like me the majority of americans are christian and yet we do not band blast themy against our sacred belief. i think people will call me awful things every day. and i will always defend their right to do so. >>reporter: at the children top global initiative conference g.o.p.